Evidence map›Paper›PMID 40138923›Full record

ArticleJournal of colloid and interface science2025

Curvature- and temperature-dependent transport of soluble surfactant mixtures to the air-aqueous surface with applications in fluorine-free firefighting foams.

Shihao Liu, Meenal Rathi, Yun Chen, Sourav Barman, Steven V Iasella, Katherine M Hinnant, Joseph A Zasadzinski, Cari S Dutcher

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of colloid and interface science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Shihao LiuDepartment of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Meenal RathiDepartment of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Yun ChenDepartment of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Sourav BarmanDepartment of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Steven V IasellaDepartment of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Katherine M HinnantChemistry Division, U.S. Naval Research Lab (NRL), Washington, DC 20375, USA.
Joseph A ZasadzinskiDepartment of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
Cari S DutcherDepartment of Mechanical Engineering, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA. Electronic address: cdutcher@umn.edu.

Funding

LIPID AND PROTEIN EFFECTS ON MONOLAYER STABILITYR01HL051177 · NHLBI · UNIVERSITY OF MINNESOTA · PI Joseph Anthony Zasadzinski · 1994 to 2026
$9.5M
Enhancing Adsorption of Lung Surfactants at the Air-Water Interface Using Methods from Colloid Stability TheoryF32HL151128 · NHLBI · UNIVERSITY OF MINNESOTA · PI IASELLA, STEVEN · 2020 to 2023
$248k
NHLBI NIH HHS F32 HL151128NHLBI NIH HHS R01 HL051177
6 · The paper itself

Abstract

Understanding surfactant adsorption to air-water interfaces is crucial to eliminating toxic fluorocarbon-based surfactants while retaining firefighting performance. The adsorption of commercial siloxane and Glucopon surfactants is investigated by measuring dynamic surface tension at different length scales using a pendant drop tensiometer and capillary pressure microtensiometer (CPM) for millimeter and micrometer sized bubbles at 23 °C and 60 °C. Higher surfactant concentration and higher curvature favor surfactant adsorption. The effect of interfacial curvature can be rationalized by rescaling respective times scales for diffusion-limited adsorption. For constant area adsorption in the capillary pressure microtensiometer, surfactants relevant to firefighting foams show stepwise adsorption. Model mixtures of ethoxylated surfactants of different chain lengths also show this stepwise adsorption, suggesting heterogeneity in tail lengths in the commercial surfactants. Surfactant adsorption is modeled by treating the mixtures as a quasi-single component using the Ward-Tordai equation and the Langmuir adsorption isotherm to characterize the temperature-dependent surfactant properties. While temperature increases the diffusivity of both Dow 502W and Triton X100, Dow 502W demonstrates key differences in surfactant adsorption compared to Triton X100 and the Glucopon surfactants at elevated temperatures. A deeper understanding of how different head and tail group lengths and temperature affect surfactant adsorption will help optimize new surfactant replacements for enhanced firefighting performance.

Indexed as

Capillary pressure microtensiometerFirefighting foamsMixturesPendant drop tensiometerStepwise adsorptionSurfactants

Identifiers

PMID40138923
PMCPMC11993333

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.